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15 Μαΐ 2023 · When acting at the knee joint, the most prominent action of the biceps femoris muscle is flexion of the leg. This occurs when the lower limb is in an anatomical position. In contrast, when the knee is semiflexed, biceps femoris acts to produce external rotation of the leg at the knee.
24 Οκτ 2022 · Actions: Flexion and lateral rotation of the knee. Weak extensor and lateral rotator of the thigh. Innervation: Long head is innervated by the tibial part of the sciatic nerve; Short head is innervated by the common fibular part of the sciatic nerve. Blood Supply: Profunda femoris artery
4 Δεκ 2023 · The biceps femoris is responsible for movement at both the hip joint and knee joint. At the hip, the long head of the biceps femoris allows for thigh extension and external rotation. Whereas at the knee, the biceps femoris allows for knee flexion and lower leg external rotation.
Biceps femoris is a muscle of the posterior compartment of the thigh, and lies in the posterolateral aspect. It arises proximally by two 'heads', termed the 'long head' (superficial) and the 'short head' (deep).
7 Νοε 2022 · Interactive 3D model of the biceps femoris muscle and information on its origin, insertion, action, innervation, and blood supply.
Biceps femoris muscle. Posterior view of right leg. Long head of muscle highlighted in red, short head (yellow) labeled in the lower part of the image. The biceps femoris (/ ˈbaɪsɛps ˈfɛmərɪs /) is a muscle of the thigh located to the posterior, or back.
3 Νοε 2023 · Biceps femoris is a two-headed muscle that runs superficially through the posterior thigh. Each head of biceps femoris has its own origin and supply, but they share the common insertion. The long head of biceps femoris arises from the ischial tuberosity and sacrotuberous ligament.
